In 2017, through the Bus Services Act, the government introduced powers to require the provision of audible and visible information on local bus services throughout Great Britain.
When enacted, this will require bus operators to equip their vehicles with display screens to provide next stop information and audio systems to announce the information - using both speakers and induction loops.
This document provides advice and guidance on the customer information requirement, different types of displays and audio equipment, installation and maintenance of on bus audio visual equipment to assist operators in identifying the right solution for their operation and how it needs to be managed and maintained.
You can access the document here: https://www.rtig.org.uk/documents/rtigt045-1